.timer-duration-control {
  display: flex;

  & > label:not(:first-child) .time-box,
  & > .time-box:not(:first-child) {
    border-bottom-left-radius: 0;
    border-top-left-radius: 0;
  }

  & > label:not(:last-child) .time-box,
  & > .time-box:not(:last-child) {
    border-right: none;
    border-bottom-right-radius: 0;
    border-top-right-radius: 0;
  }
}
